ahlam1399
08-28-2019, 10:51 PM
The Rescue Operation - This article covers the safe working practices to be used by those involved in aerial tree rescue, a minimum of two people should be present during all tree-climbing operations. One of the ground team must be available, competent and equipped to perform an aerial rescue without delay.
أكثر... (http://EzineArticles.com/9781395)
أكثر... (http://EzineArticles.com/9781395)